MenuFlyoutItem command binding not working in submenu items

Description

MenuFlyoutItem command binding does not appear to work in the case below. This is similar to https://github.com/dotnet/maui/issues/5382, but that issue is closed.

A workaround at https://github.com/dotnet/maui/issues/5382 is mentioned and works as shown below. Should the NON WORKING EXAMPLE work without the 5382 workaround?

For example, I would expect the DoSomethingCommand to run below, but it only works if I modify the code below to use the workaround.

NON WORKING EXAMPLE `<?xml version="1.0" encoding="utf-8" ?> <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:viewmodels="clr-namespace:MauiApp1.ViewModel" x:Class="MauiApp1.MainPage" x:DataType="viewmodels:MainPageViewModel" x:Name="thisMenuBarWorkaround">

<ContentPage.BindingContext>
    <viewmodels:MainPageViewModel/>
</ContentPage.BindingContext>

<ContentPage.MenuBarItems>
    <MenuBarItem Text="File">
        <MenuFlyoutSubItem Text="Open">
            <MenuFlyoutItem Text="Open Do Something..."
                            Command="{Binding DoSomethingCommand}"/>
            
        </MenuFlyoutSubItem>
    </MenuBarItem>
</ContentPage.MenuBarItems>

</ContentPage>`

WORKING EXAMPLE USING WORKAROUND `<?xml version="1.0" encoding="utf-8" ?> <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:viewmodels="clr-namespace:MauiApp1.ViewModel" x:Class="MauiApp1.MainPage" x:DataType="viewmodels:MainPageViewModel" x:Name="thisMenuBarWorkaround">

<ContentPage.BindingContext>
    <viewmodels:MainPageViewModel/>
</ContentPage.BindingContext>

<ContentPage.MenuBarItems>
    <!--https://github.com/dotnet/maui/issues/5382 workaround-->
    <MenuBarItem Text="File"
                 BindingContext="{Binding Path=BindingContext,
                                          Source={x:Reference thisMenuBarWorkaround}}">
        <MenuFlyoutSubItem Text="Open">
            <MenuFlyoutItem Text="Open Do Something..."
                            Command="{Binding DoSomethingCommand}"/>
            
        </MenuFlyoutSubItem>
    </MenuBarItem>
</ContentPage.MenuBarItems>

</ContentPage>`

VIEWMODEL

using CommunityToolkit.Mvvm.Input;

namespace MauiApp1.ViewModel;

public partial class MainPageViewModel
{
    [RelayCommand]
    public static void DoSomething()
    {
        // This point is never hit without workaround
        return;
    }

Steps to Reproduce

1. Load github example below and run solution.
2. Note that the menu item will not reach the ViewModel command

Link to public reproduction project repository

https://github.com/jeff922/MauiMenuTest

Version with bug

7.0 Release Candidate 2

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

.NET 7.0.100-rc.2.22477.23 and Microsoft Visual Studio Community 2022 (64-bit) - Preview Version 17.4.0 Preview 3.0

Did you find any workaround?

Workaround mentioned in https://github.com/jeff922/MauiMenuTest.

Relevant log output

No response

[jeff922]

@PureWeen Thanks. I updated VS to Preview 4 and this fixed the issue

[PureWeen]

Thank you for following up @jeff922 !!